[–] FridayJones 0 points 3 points (+3|-0) ago 

We just got the all-optical Network Switch 20 years ago. For some reason, the US tech sector went soft on fiber optic technology, twice actually. Most recently in 2001 during the Dot Com Bust. That has left much of the development to the tech sectors of other countries, putting Canada ahead of the USA in one important aspect of high tech right now. China is also a huge leader in fiber optic tech.

[–] B3bomber 0 points 2 points (+2|-0) ago 

Not soft. The ones who were supposed to build out fiber got paid to do so. That money never went to those projects (at least $300 billion from 1996 telecommunications act).

[–] Tallest_Skil 0 points 2 points (+2|-0) ago 

Massive inefficiencies in energy conversion, both in data speed losses and extra power use.

[–] boredTech [S] 0 points 1 point (+1|-0) ago 

interesting, the speed losses I hadn't heard about (except when converting from electronic pulse to optic) but where does the extra power use come from.

I'm looking into this a bit, because it seems like a method to avoid the massive wall that heat has caused.

[–] Tallest_Skil 0 points 1 point (+1|-0) ago 

where does the extra power use come from

The act of doing the conversion itself. That, then, increases heat output. You’re right in thinking that a fully optical setup would be best, but then you have to worry about the signal interaction. If you look at existing fiber optic setups, they can only manage throughput in the 10s of gigahertz, which isn’t much better than standard chips. We don’t have miniaturized, energy efficient methods of sending femtosecond pulses in commercial (or even industrial) hardware, which is what you’d need to see a real benefit. Scientific? Sure. But they’re one-offs and ludicrously expensive.

[–] saltine 0 points 1 point (+1|-0) ago 

I don't know.

Traditionally the excuse for not having optical logic gates, in production, is that the physical properties of materials change too subtlely for logic gates to reliable...

You can still have fiber optics to transmit data though! Fiber optics took a long tine to take off because the glass used has to be fairly pure or else too much light gets absorbed to travel long distances... The first effective fiber optic cable was made in ~1950 by using more pure glass. In the 1990's is when it started to get widely deployed in telephone wire, I think that had something to do with LED lasers and/or other things... shrug

Of course, for all we know DARPA could have had these things decades ago and just kept it hidden from the public. :/

[–] boredTech [S] ago 

Wow, down voated without a reason. Somebody is grumpy.

[–] B3bomber ago 

There's a lot of that lately. Yet the very obvious spammer accounts+domains get lots of upvotes. Gee, I wonder what is going on?

@puttitout needs to clean house or find some people who will and give them that ability.

His account likely got taken over years ago since nothing useful in that respect has happened.

[–] boredTech [S] ago 

Ever think that some of the people who financed the site use accounts as "organic" advertising.

[–] Chempergrill ago 

I originally upvoated your question, but I'll change it to a downvoat.

[–] boredTech [S] ago 

Fine man, at least you have a reason publicly available.